{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.681","julian_year":2026.681,"time":"2026-09-06T13:20:26.936Z","years_from_j2000":26.681,"frame":"date","applied":"Proper motion, then precession and nutation. The catalogued J2000 position is carried along the great circle the object's own published motion puts it on, at a constant velocity, and the result is referred to the true equator and equinox of this instant. Those are separate things: the motion moves the object, and the rotation turns the grid under it by about fifty arcseconds a year, with nutation adding up to another seventeen.","excluded":"Parallax, the radial-velocity perspective term, aberration and refraction; each is below the accuracy of the catalogued positions themselves. An object with no published proper motion comes back where the catalogue has it rather than at a fabricated zero, and says so with a null pm_ra_mas_yr. A body with no fixed position is not propagated at all — its place comes from an ephemeris, which is what /api/v1/visible answers with."},"slug":"hd-10436","name":"HD 10436","class":"k5vbe_orange_dwarf","category":"star","object_type":"K5Vbe orange dwarf","mag":8.42,"mag_band":"V","abs_mag":7.756,"abs_mag_band":"V","distance_ly":44.28453449724627,"distance_method":"parallax","ra_deg":25.9209,"dec_deg":63.823401,"epoch_ra_deg":26.388766,"epoch_dec_deg":63.954349,"epoch_moved_arcsec":18.749,"pm_ra_mas_yr":-394.18,"pm_dec_mas_yr":-581.75,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Cassiopeia","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-10436","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"spectral_type":"K5Vbe","color_index_bv":1.202,"luminosity_solar":0.06880183161430377,"metallicity_fe_h":-0.14,"radial_velocity_km_s":-50.7,"spectral_type_source":"SIMBAD (1989ApJS...71..245K, quality C)","surface_gravity_log_g":4.72,"surface_temperature_k":4337,"metallicity_fe_h_source":"One spectroscopic determination, compiled from the literature (PASTEL, Soubiran+ 2016)","proper_motion_ra_mas_yr":-394.18,"proper_motion_dec_mas_yr":-581.75,"stellar_parameters_method":"Spectroscopic determinations compiled from the literature (PASTEL, Soubiran+ 2016)"},"designations":[{"catalog":"Gliese","designation":"Gl 69"},{"catalog":"HD","designation":"HD 10436"},{"catalog":"HIP","designation":"HIP 8070"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-02T19:50:56.720Z","attribution":"Data from SpaceCatalog.org. Individual records carry their source and license in `source`; attribution is required for CC-BY and CC-BY-SA rows."}